IDEAS home Printed from https://ideas.repec.org/a/gam/jeners/v16y2023i5p2113-d1076503.html
   My bibliography  Save this article

Assessment of the Thermodynamic and Numerical Modeling of LES of Multi-Component Jet Mixing at High Pressure

Author

Listed:
  • Alexander Begemann

    (Institute of Applied Mathematics and Scientific Computing, University of the Bundeswehr Munich, Werner-Heisenberg-Weg 39, 85577 Neubiberg, Germany
    Current address: Aeronautics, Bundeswehr Munich, Werner-Heisenberg-Weg 39, 85577 Neubiberg, Germany.)

  • Theresa Trummler

    (Institute of Applied Mathematics and Scientific Computing, University of the Bundeswehr Munich, Werner-Heisenberg-Weg 39, 85577 Neubiberg, Germany
    Current address: MTU Aero Engines AG, Dachauer Str. 665, 80995 Munich, Germany.)

  • Alexander Doehring

    (Institute of Applied Mathematics and Scientific Computing, University of the Bundeswehr Munich, Werner-Heisenberg-Weg 39, 85577 Neubiberg, Germany)

  • Michael Pfitzner

    (Institute for Thermodynamics, University of the Bundeswehr Munich, Werner-Heisenberg-Weg 39, 85577 Neubiberg, Germany)

  • Markus Klein

    (Institute of Applied Mathematics and Scientific Computing, University of the Bundeswehr Munich, Werner-Heisenberg-Weg 39, 85577 Neubiberg, Germany)

Abstract

Mixing under high pressure conditions plays a central role in several engineering applications, such as direct-injection engines and liquid rocket engines. Numerical flow simulations have become a complementary tool to study the mixing process under these conditions but require complex thermodynamic modeling as well as validation with accurate experimental data. For this reason, we use experiments of supercritical single-phase jet mixing from the literature, where the mixing is quantified by the mixture speed of sound, as a reference for our work. We here focus on the thermodynamic modeling of multi-component flows under high pressure conditions and the analytical calculation of the mixture speed of sound. Our thermodynamic model is based on cubic equations of state extended for multi-components. Using an extension of OpenFOAM, we perform large-eddy simulations of hexane and pentane injections and compare our results with the experimentally measured mixture speed of sound at specific positions. The simulation results show the same characteristic trends, indicating that the mixing effects are well reproduced in the simulations. Additionally, the effect of the sub-grid scale modeling is assessed by comparing results using different models (Smagorinsky, Vreman, and Wall-Adapting Local Eddy-viscosity). The comprehensive simulation data presented here, in combination with the experimental data, provide a benchmark for numerical simulations of jet mixing in high pressure conditions.

Suggested Citation

  • Alexander Begemann & Theresa Trummler & Alexander Doehring & Michael Pfitzner & Markus Klein, 2023. "Assessment of the Thermodynamic and Numerical Modeling of LES of Multi-Component Jet Mixing at High Pressure," Energies, MDPI, vol. 16(5), pages 1-23, February.
    • Handle: RePEc:gam:jeners:v:16:y:2023:i:5:p:2113-:d:1076503
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/1996-1073/16/5/2113/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/1996-1073/16/5/2113/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Sajad Jafari & Hesham Gaballa & Chaouki Habchi & Jean-Charles de Hemptinne, 2021. "Towards Understanding the Structure of Subcritical and Transcritical Liquid–Gas Interfaces Using a Tabulated Real Fluid Modeling Approach," Energies, MDPI, vol. 14(18), pages 1-38, September.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Jaya Vignesh Madana Gopal & Robert Morgan & Guillaume De Sercey & Konstantina Vogiatzaki, 2023. "Overview of Common Thermophysical Property Modelling Approaches for Cryogenic Fluid Simulations at Supercritical Conditions," Energies, MDPI, vol. 16(2), pages 1-30, January.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jeners:v:16:y:2023:i:5:p:2113-:d:1076503. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.